Gordon Cairns, chairman of the Woolworths Group, said he was concerned about the allegations regarding its joint venture partner, Australian Leisure and Hospitality Group, and was taking them "very seriously".

"ALH will expand RGC's review to include the allegations raised by the former ALH employees and Mr Andrew Wilkie.

"We would encourage them, Mr Wilkie and any others with relevant information to be part of the independent review."

ALH said the line between legitimate customer service and responsible gaming and alcohol service must be respected.

"If there are instances where that line has been crossed, ALH is committed to taking the necessary steps to rectify any breach and address any non-compliant behaviour," the company said in a statement.

It has notified the independent regulator in Queensland, where the matters raised on Wednesday originated in mid-2017, and says it stands to provide any information or assistance required.

Mr Wilkie said it was up to each jurisdiction to consider the legality of the activities.

He conceded other hospitality businesses might be applauded for gathering such information to build relationships with customers, but insisted pokies venues were a different kettle of fish.

"This is a systemic program of harvesting very sensitive private information and storing it on a shared data base that many people can access," he said.

"This is broadacre surveillance, this ain't the concierge at the motel or hotel."

Pokies have emerged as a key election issue in Saturday's Tasmanian state election, after the Labor opposition promised to strip machines from pubs and clubs.

The Liberal government has pledged to change licensing arrangements so individual venues are licensed.